124921040 has 40 divisors (see below), whose sum is σ = 291195648. Its totient is φ = 49838720.

The previous prime is 124921037. The next prime is 124921091. The reversal of 124921040 is 40129421.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 124920997 and 124921015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32669 + ... + 36291.

Almost surely, 2^124921040 is an apocalyptic number.

124921040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

124921040 is an abundant number, since it is smaller than the sum of its proper divisors (166274608).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

124921040 is a wasteful number, since it uses less digits than its factorization.

124921040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4067 (or 4061 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 124921040 is about 11176.8081311258. The cubic root of 124921040 is about 499.8946978245.

The spelling of 124921040 in words is "one hundred twenty-four million, nine hundred twenty-one thousand, forty".